William



W. c. ROBERTS-0N a F. MAME.

au no@ 2 2 a I S 2 a uo on r H @z z@ -r m MACHINES FOR FO'RMING PIERFORA'ED No. 173,052.

lscribed.

which is WILLIAM o. nonnrsonpwn- FREDERICK emacs, or iinw Yom? n, v

meest/Easier MACHINES For Forum@ mantenuto usmrsv '''pe'ci'i'c'ztonforming partent'. Lettevrsllgtent No. 178,062, dated Febrdary 1,1876; application tiled Denim ,1er-5. t

To all whom it may concern.' yBe it known that we, WILLIAM C; ROBERT- soN and FREDERICK PEARCE, of the city, county, and State of Nexis7 York, have invented a new and useful Improvement in Machine for Forming Perforated Letters, &c., of which the following' is a specification:

Figure l isa horizontal section of our improved machine, taken through the line :t .'v, Fig. 2. Fig. 2 is aside view of the same.

parts being broken away to show the construction. Fig. 3 is a detail. section ofthe top plates, taken upon the line y y, Fig. 1.

Similar letters of reference indica-te corresponding' parts. f

The object of this invention is to furnish an improved machine for forming perforated letters and other designs in card-board, thin sheet metal, and other suitable `substances easily and quickly," and which ma-y be readily adjusted to form different letters and designs,

as may be desired.

, The invention consists/in the combination of the detachable top plate, the perforated holding-plate, the movable perforated guideplate, the stationary perforated guide-plate,

the perforated bedplate, and thedetachable .pins with` each other, as hereinafter fully de- 'A represents the table ofthe machine, l made of4 convenient length land breadth, and is supported upon legs B,v-o f suoli a length as1 to .raise the .machine to a convenient height.

.' lo the table A, directly over a large hole,

' a', formed in said table, are secured two plates, G D, which are kept at the proper distance apart to receive between them the strip to be perforated by thin` blocks or washers interposed between their corners or ends, as shown in Fig. 2.

To the corners of the upper plate D are attached the lower ends of four studs, E, which pass up through holes in the corners of the tlirec plates F G H.

Theftwo lower plates, F G, are rigidly connected and held at the proper distance apart by studs I, interposed between and secured to their ends.

The plates C D F G are perforated with nnmerous small holes, arranged in perfect checkrow, and in such a way that the corresponding holes of the four plates C D l? G may be exactly in the'sanlc vertical line.

The upper ends of the holes through the plate G are cunters'unk to receive the heads of the pins J, Iwhich pins J are kept in place by the plate H, which is secured to the plate G by screwbolts or other suitable means, so 1 thatit m'ay be convenientlydetached ywhen desired, to allow the pins J to be rearranged. To the middle part 'of the top plate H is at ltached a 'cross-bar,l K, the ends of which pro-` ject a little, and from them are hung the upper ends of two connectingbars, L.

The bars L pass vdown at the opposite side of the table A B, and their lower ends are connected with the ends ofa cross-bar, M, to

the center of which is pivotcd the lever N.

One end ofthe lever N is pirated to `the lower end of a hanger, O, the upper end of 'a Whichis attached to the lower side of the table A. The other eud of the lever N projects'into such a position that it may he operated by the'workman with his hand or foot.

By .this construction, by forcing down the free end of the lever N the platesF Gr EL' will be drawn down, forcing the pins J down through the plates' D 0,1 and through the strip-interposed between said plates D G. As the freeA end of the lever N is released from the-pressure the plates F G .H are raised by the spiral springs B, coiled around the studs- E, between the plates D F, and by their npward movement draw the pins J out, of the plate C, out `of the perforated strip, and ont 0f the 'plate D so ifa-r, that their lower ends may be above the lower surface of said plate D, so that they may not interfere` with the putting j perforated;

By this construction, by removing the plate H the pinsJ maybe adjusted to form any de sired letter or any desired device.

Having thus described our invention, we

claim as ynew and desire to secure by Letters ,Patent- L l f The combination of the. detachable top plate Hthe peribrated holding-plate G, the movvable perforated guide-plate F, the stationary perforated guide-plate D, the perforated bedplate C, and the detachable pins J with each other, substantially as herein shown-and described, and for the purposeA set forth. y

. W iLlilA-M C. ROBERTSON.

FREDERICK 'PEABGE 'Witnesscsz 1.

JAMES T. GRAHAM, ALEX. F. ROBERTS.

'I and taking out of the strip to be 

